Definitionintro
Ciphertext-only attack
Also called COA.
The attacker sees only ciphertexts and must recover the key or plaintext.
The attacker sees only ciphertexts and must recover the key or plaintext.
About this page
The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.
| Ladder | Level | What the next level needs |
|---|---|---|
| Human proof | H0 no proof |
|
| Lean | L0 no Lean part |
|
| Visual | V0 none |
|
| Writing | W0 stub |
|
Tag 5YKDCX Edit this page History Report an error